Application of genetic algorithm with multi-objective function to improve the efficiency of glazed photovoltaic thermal system for New Delhi (India) climatic condition

Singh, Shweta; Agarwal, Sanjay; Tiwari, G.N.; Chauhan, Deepika

doi:10.1016/j.solener.2015.04.025

Cited by 41 publications

(9 citation statements)

References 22 publications

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“…Factors such as length, depth of the channel, the velocity of air flowing into the channel, the thickness of the Tedlar and glass and the temperature of inlet fluid affecting the efficiency of the PV/T system. The results indicated that the 4.6% and 13.14% enhancement in the overall exergy and thermal efficiency noticed [19].…”

Section: Milestones That Paved the Way For The Evolution Of Pv/t Systemsmentioning

confidence: 95%

“…Several researchers conducted both experimental and theoretical analysis on the PV/T system performance with different modifications such as glazing [12]- [14], without glazing [15], channel arrangements [16], [17], environmental parameters [18] and optimisation of air channel depth [19], [20]. They found some impressive results, and few of them are discussing here.…”

Section: Milestones That Paved the Way For The Evolution Of Pv/t Systemsmentioning

confidence: 99%

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A Review: Emphasizing the Nanofluids Use in PV/T Systems

et al. 2020

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Certainly, photovoltaics (PV) is regarded as one of the most reliable and competitive energy production alternatives due to a massive decline in prices. Coming years are expected to witness PV systems leading the renewable electricity capacity growth by surpassing 550 GW. However, the efficiency of the enormous number of PV modules being produced and installed remains poor due to overheating. PV systems that are cooled using liquid coolants, popularly known as photovoltaic-thermal (PV/T) is a promising solution, but the inherent thermal conductivity of the conventional coolants being used makes it less attractive. Besides the evolution of next-generation PV modules and efficient designs, a breakthrough was made when nanoparticles successfully dispersed in coolants that led to better heat transfer and energy conversion. In recent years, hybrid nanoparticle-based fluids have helped augment heat transfer through PV panels. In this review, we discussed the evolution of PV/T system; difficulties faced in improving thermal and electrical production, and explain how the design modifications and hybrid nanofluids contribute in enhancing the system performance. In terms of the PV/T efficiency, we specifically highlight the role of hybrid nanofluids and the struggles arise from design to operation through 10 big questions and some possible solutions are also suggested to overcome those issues.INDEX TERMS Solar thermal, hybrid nanofluids, channel flow patterns, channel geometry, heat transfer, thermal conductivity.

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Section: Milestones That Paved the Way For The Evolution Of Pv/t Systemsmentioning

confidence: 95%

Section: Milestones That Paved the Way For The Evolution Of Pv/t Systemsmentioning

confidence: 99%

A Review: Emphasizing the Nanofluids Use in PV/T Systems

et al. 2020

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“…Ammar et al [134] developed the thermal energy distribution model based on ANN to calculate the optimum performance operating point of PV/T water collector. Singh et al [135] investigated the performance of PV/T air collector using GA by optimizing its four parameters particularly length of the channel, depth of the channel, heat transfer coefficient and fluid velocity. The overall η Ex of the system was reported 16.88% at the optimized value of parameters, as shown in Table 2.…”

Section: Role Of Soft-computing Techniques In Forecasting the Performance Of Pv/t Technologymentioning

confidence: 99%

Photovoltaic–thermal (PV/T) technology: a comprehensive review on applications and its advancement

Diwania

Agrawal

Siddiqui

et al. 2019

Int J Energy Environ Eng

Self Cite

168

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Over the most recent couple of decades, tremendous consideration is drawn towards photovoltaic–thermal systems because of their advantages over the solar thermal and PV applications. This paper intends to show different electrical and thermal aspects of photovoltaic–thermal systems and the researches in absorber design modification, development, and applications. From the previous review articles, it has been concluded that the heat energy exhausted from the PV module can be further utilized in different ways and helps in achieving better efficiency. Furthermore, the types of photovoltaic–thermal systems such as air collector, water collector, and combi system, coupling with heat pump and their application to buildings are also stated. This paper also discussed certain design aspects like modifications in the flow channel by adding fins, thin metallic sheets, roll-bond absorber, and porous media and the effect of these modifications on the hybrid system’s efficiency. Furthermore, the use of the latest technologies such as nanofluids, thermoelectric generators, and phase-change materials improves the overall system performance. The role of soft-computing techniques is forecasting the impact of various parameters on the photovoltaic–thermal system is also discussed.

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“…As observed in [23][24][25] the simulated operation of microgrids is well-reported in literature but data analysis gathered from physically installed sites is neglected. No experimental tests are used to verify the ideal simulated models reported in [26][27][28][29][30]. Many studies e.g.…”

Section: Fig 1 Islanded Renewable Energy Microgridmentioning

confidence: 99%

An islanded microgrid energy management controller validated by using hardware-in-the-loop emulators

Petreuş

Etz

Pătărău

et al. 2019

International Journal of Electrical Power & Energy Systems

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A novel microgrid emulator used to test multiple microgrid configurations and energy management control strategies is presented. The system includes Hardware-In-the-Loop (HIL) emulators for geothermal and biogas energy sources. It also includes actual photovoltaic energy together with a lead acid battery bank for storage and it is controlled by a two level control system. The control system consists of a primary level voltage-reactive power and frequency-active power and a secondary level energy management algorithm based on the balance between the power produced by the renewable energy generators, state of charge of the battery bank and the loads. The energy management control strategy is based on cycle-charging the batteries at a reference value in order to efficiently use the available resources. The primary energy source is considered the geothermal energy, while the most cost effective one is the photovoltaic energy. A buffer zone is kept in the battery bank in order to store as much energy produced by the photovoltaic system as possible. The presented microgrid, used for testing the energy management strategies, employs emulators for the geothermal and biogas generators; however, the results are relevant and can be scaled for a real-life microgrid.Keywords: microgrid, power management, renewable energies, two level control, cycle charge control. Auxiliary equipment and communicationA method to send the commands to the microgrid and to measure the process variables from the microgrid is needed for the control algorithm based on battery cycle charging implementation. A bidirectional three wire RS485 serial communication network is built for this purpose. The communication protocol used in the network uses Modbus compatible data frameworks but is also compatible with the data protocols used by the inverters. Beside the communication modules needed by the inverters, there is a need for other equipment in order to give the geothermal and biomass emulators communication capabilities. The command signals are fed to the emulators through Modbus to analog converters and Modbus output compatible power meters are used for the electrical measurement. The network communication master is the central computing unit. The program that implements the master's communication functions and the cycle charging battery management algorithm is written in ANSI C, thus being highly portable. The physical interface between the network and the master is made by an USB to RS-485 interface. The connections of the equipment are presented in Fig. 22. The set points for the SMA equipment are directly sent through the communication network, but the emulators need Modbus to analog transducers for their commands.

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Application of genetic algorithm with multi-objective function to improve the efficiency of glazed photovoltaic thermal system for New Delhi (India) climatic condition

Cited by 41 publications

References 22 publications

A Review: Emphasizing the Nanofluids Use in PV/T Systems

A Review: Emphasizing the Nanofluids Use in PV/T Systems

Photovoltaic–thermal (PV/T) technology: a comprehensive review on applications and its advancement

An islanded microgrid energy management controller validated by using hardware-in-the-loop emulators

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